Ingot-casting machine.



G. M. CLARK, JR. INGOT CASTING MACHINE.

APPLICATION FILED FEB. 8, 1909.

Patented Jan.*18,..1910.

4 sums-sum 1.

G. M. CLARK, JR. INGOTCASTING MACHINE.

APPLICATION FILED TEE. 8, 1909.

946,721 Patented Jan. 18, 1910.

4 SHEETS-SHEET 2.

l I I :I l 1 I! l l l I l: I I I II G. M. CLARK, JR. INGOT CASTINGMACHINE.

' APPLTGATION FILED FEB. 8,1909.

946,721, Patented Jan. 18,1910.

4 SHEETS-SHEET 8.

4 SHEETB-SHEET 4.

Patented Jan. 18, 1910.

G. M. CLARK, JR.

INGOT CASTING MACHINE.

APPLICATION FILED IEB. 8, 1909.

"UNITED STATES PATENT curios.

GEORGE M. CLARK, JR., 015 NAHANT, MASSACHUSETTS. 5

INGOT-CASTING MACHINE.

Specification of Letters Patent. Patented 1311.18, 1910.

. Application filed February 8, 1909. Serial No. 476,728.

To all whom it may concern:

Be it known that I, GEORGE M. CLAnK, Jr, a citizen of the UnitedStates,-resid1ng at 'Nahant, in the county of Essex and State ofMassachusetts, have invented newand useful Improvements in Ingot-CastingMa chines, of which the following is a specificatlon.

Tl'llS invention relates to an improved 1ngot casting machine and theobject is to pro-' vide a simple, durable and inexpensive ma-- chine bymeans of which molten type metal may be cast into ingots, the machinebeing employed in practice in melting up linotype,

- whereby the mold and ingot therein may be quickly cooled.

Astillfurther object is to provide improved means for relatively movingthe mold members and to lock the same in cooperative relation to receivethe molten metal.

Still another object is to provide means for adjustably supporting themold and operating mechanism upon the pot for the molten metal and insuch a manner as to be capable of being fitted to pots of.various sizesand shapes.

The invention consists in the novel features of construction and in thecomblnatlon and arrangement of parts set for: in the .followingspecification and particularly pointed out in the appended claims.Referringto the drawings: Figure 1 is a plan of an ingot casting machineembodymg my invention, the pot for the molten metal being partlybroken-away to save space.

Fig. 2 is a side elevation of the same. Fig. 3 is a section. partly inelevation, taken Like numerals refer to like parts throughout theseveral views of the drawings.

In the drawings, 10 is a pot of any usual or desired construction, onwhich is supported a frame comprising two frame members 11 and 12resting upon the upper edge of said pot and provided, respectively, withlugs 13 and 14 extending downwardly into the interior of the pot. bers11 and 12 a mold member 15 is rigidly secured in any suitable manner asby means of a plurality of screws 16, while another To the frame memmoldmember 17 adapted to cooperate with thev member 15 is movable toward andaway therefrom. The .member 17, as is clearly shown in Fig. 4, isprovided with a series of depressions l8 and a series of depressions 19of the proper shape for the ingots to be cast, these depressions beingarranged in pairs connected by grooves 20. 'A positioning screw 21having screw-threaded engagement with the mold memberl5 is adjustably secured thereto in such a manner asto bear against the outer wall of thepot 10, this ad- ]ustmentlbeing provided for the purpose of adapting themechanism to pots of different sizes.

Formed on or secured to the member 17 upon opposite sides, respectively,thereof are hubs 22 and 23 on which are journaled wheels 24 and 25,respectively, adapted to run on a track comprising rails 26 and 27 fastto the frame members 11 and 12, respectively, said wheels being groovedas clearly shown in Fig. 4 so as to be guided laterally on said rails.-The mold member 17 is moved'toward and away from the mold member 15 bythe following mechanism: Mounted in bearings 28 and 29 in the framemembers 11 and 12,'respectively, is a rock shaft 30 having fast theretoan operating arm 31 by means of which a rocking movement may be impartedthereto. The rock shaft 30 is connected to the mold member 17 by toggles32 and 33, the toggle 32 comprising an arm 34 fast to said rock shaftand a link pivotally connected to said arm' and also pivotally connectedto the hub 22, while in like manner the toggle 33 comprises an arm 36fast to said rock shaft and a link 3 7 pivot- 33 will be actuated tomove the mold member 17 away from the mold member 15.

Referring to Fig. 3 it will be observed that the toggles 32 and 33 areso constructed and arranged that the axes of the pivots 38 and 39 arenormally located below a plane AA containing the axis of the rock shaft30 and the axes of the hubs 22- and 23, said pivots being prevented frompassing below the position shown by means of lugs 40 and 41 formed onthe arms 34 and 36, respectively, and adapted to engage lugs 42 and 43formed on the links 35 and 37, respectively. It will be evident that byvirtue of this arrangement when the toggles 32/and 33 occupy theposition shown in thedrawings, said toggles act to lock the mold mem ber17 against movement away from the mold member 15.

In order to prevent leakage between the two mold members it is desirablethat their opposed faces shall be pressed tightly into contact with eachother and to that end the bearings 28 and 29 are adjustably mounted inslots 44 and 45, respectively, formed in the frame members 11 and 12,the bearing,

and 33 to force the mold member 17 tightly against the mold member15,-it being evident that a considerable pressure will-be exertedthereupon as the axes of the pivots 38 and 39 approach and passthe'plane AA.

I will now proceed to describe the pump and connections whereby themolten metal a is drawn from the pot 10 and forced into the ,mold.Located within the pot 10 is a Y. pump comprising a cylinder 51 rigidlysecured to an arm 52 depending from and secured to the frame member12-by means of a bolt 53 extending through a vertical slot 54 in saidarm and through a horizontal slot 55 in said frame member, whereby whenthe mechanism is assembled the pump may be properly positionedwithrespect to thepot. A pipe 56 connected'to the top of the cylinder 51extends upwardly therefrom and is connected to an elbow 57 to whichelbow is connected a horizontal ipe 58, said horizontal pipe beingconnected y means of a suitable coupling 59. to what I shall term athroat 60 having a cover plate 61 secured thereto. The throat 60 issecured to the mold member 15 and has therein a passage 62'forming acontinuation of the assage 63 through said mold member, the atterpassage communicating with a series of depressions 64 leading into the-depressions 18, respectively.

Located in the cylinder 51 is a piston 65 connected to a piston rod 66,said piston rod being connected by a link 67 to an operating piston 65downwardly into the molten metal in the pot the valve 72 being lighterthan the molten metal will lift and allow a portion of the metal to flowthrough the ports 71 into the space above the piston 65 and that whensaid piston is lifted said valve will close and force the molten metalthereabove through the pipes, '56 and 58, through the passages 62 and 63and through the depressions 64 into the depressions 18, it being evidentthat the metal will fill not only the depressions 18, but thedepressions 19 so as to form a series of ingots cast in pairs.

In order that the mold may be kept at a low temperature so as to rapidlycool the ingots after they have been cast, the mold members 15 and 17are provided, respectively, with chambers 74 and 75 and for convenienceof manufacture said mold members are provided with cover plates 76 and77, re-

spectively. I

The hub 22 has screwed thereinto a plug 78 to whichis connected an inletpipe 79,"

while in like manner the hub 23 has screwed as water through the.chambers 74 and 7 5,.

whereby the mold is maintainedat such a low temperature as to quicklycool the ingots therein.

The ingots after being formed are ejected by the following ejectingdevices: Slidably mounted in the mold members 17 are a plurality ofplungers 85 corresponding innumber to the depressions for the ingots insaid mold member, said plungers being arranged in twoseries, an upperseries and a lowerseries, said plungers being provided, respectively,withv shoulders 86. The shoulders 86 of the plungers85 are normallyadapted to abut against stop plates 87, 87 fast to the cover plate 77 onthe mold member 17. The plungers 85 are provided, respectively, withscrew threaded portions 88 slidably arranged in upper and lower guides89, 89 fast to the frame members 11 and 12, each of said screw threadedportions having mounted thereon two nuts 90 and 91 which may be adjustedone toward and away from the other by rotating the same in the properdirection, these nuts when properly adjusted being held against rotationby means of set screws 92 and 93, respectively,having screw-threadedengagement with said nuts and adapted'tobear against the plunger 85.When the mold member 17 moves toward the left, from the position shownin Figs. 1, 2 and 3,the screwthreaded portions 88 of the plungers 85slide freely toward the left through the guides 89 for it will beunderstood that the ingots always stick-in said mold member and norelative movement takes place between said plungers and said mold-memberuntil the nuts 91 strike against the guides 89. Thereafter as the moldmember 17 continues to move toward the left it will be readily apparentthat a relative movement will take place between the plungers 85 and themold member 17 which will result in said plungers forcing the ingots outof their respective recesses and owing to the fact that said re-- cessesare vertically disposed the ingots fall therefrom without hindrance onthe floor or into any suitable receptacle. Located beneath the throat 60is aburner 94 provided with suitable orifices said burner being adaptedto be supplied with gas, whereby said throat may be subjected to heatfor a purpose which will appear hereinafter.

The general operation of the machine hereinafter specifically describedis' as followsi "it will be understoodthat when the mechanism isassembled upon the edge of the pot the pump cylinder 51 is adjusted tothe proper position in said pot according to the shape and size thereof,after which the pipes 56 and 58 are properly fitted up. to connect saidcylinder to the mold. Assuming the parts to be in the position shown inFigs. 1, 2 and 3, the operator first grasps the handle of the operatinglever (39 and lifts the same, thereby causing the pistol. to descend. Hethen pushes downwardly on the handle of the operating lever 68 thusraising the piston 65 and thereby forcing a supply of the molten metalthrough the connecting passages to and into the mold. He then releasesthe lever 68 and a slight reactionary movement of the piston 65 takesplace, this resulting in the molten metal, which is in the passages 63,62 and pipe 58, being drawn baclrwardly somewhat, thus lowering thelevel of said metal to the lower part of the restricted portion of thepassage 63 and thus the ingots are separated from the metal in thepassage 63. The solidifying of the ingots is a matter of but a few m0-ments because the mold members are amply cooled by the circulatingwater. The op erator then grasps the operating arm 81 after which theoperation just described is repeated. I

It will be understood that the ingots will be formed in vertical pairsconnected by a small web of metal and this web may then be broken sothat the individual ingots will appear as shown in 6.

. When the machine has been out of operation it may be that some of themolten metal will solidify in the throat 62 and, therefore, in startingthe machine up again it will be found necessary to apply heat to saidthroat, this being accomplished by means of the burner 94.

Having thus described my invention, what I claim and desire by LettersPatent to secure is:

1. An ingot casting machine having, in combination two relativelymovable mold members, a toggle connected to one of said members, a rockshaft operatively connected to said toggle to impart a reciprocatorymovement to one of said mold members, hearings in which said rock shaftis mounted to rock, a frame on which said bearings are mounted andadapted to be moved toward and away from said members, and means toadjustably secure said bearings to said frame;

2. The combination with a melting pot of an organized ingot castingmachine detachably supported thereon, said machine includ-- ing a mold,a pump located in said pot and adapted to pump molten metal from saidpot into said mold, and a lug projecting downwardly in contact with theinterior of said pot a portion of said machine engaging the exterior ofsaid pot.

' In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

GEORGE M. CLARK, JR.

